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Method for producing a molded part made of plastic and provided with a UV-cured paint, and said molded part

  • US 10,173,355 B2
  • Filed: 09/18/2013
  • Issued: 01/08/2019
  • Est. Priority Date: 09/19/2012
  • Status: Active Grant
First Claim
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1. A process for production, in an injection mold, of a plastics molding with a UV-cured lacquer and with a visible area designed as functional area, where the UV-cured lacquer forms said visible area, comprisingarranging a film segment that has not been preformed and that is in essence flat, composed of a carrier layer made of a thermoplastic and of a partially thermally cured UV-curable lacquer in a cavity of the injection mold in such a way that the partially cured lacquer layer faces toward a female-mold surface replicating the negative form of the visible area of the molding, andsubjecting the film segment arranged in the cavity to insert molding with a thermoplastic on a reverse-side surface facing away from the partially thermally cured UV-curable lacquer, in such a way that the carrier layer of the film segment bonds to the injected hot melt, andwherein a compressive force resulting from the injection pressure of the injected melt acts in the direction of the female-mold surface, whereupon, with exposure to the compressive force and to heating resulting from the direct contact with the hot melt, the entire area of the film segment is forced onto the female-mold surface and subjected to a three-dimensional forming process,removing of the molding, and curing the partially thermally cured UV-curable lacquer to completion by UV radiation and, on the molding, forming the visible area designed as functional area.

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